Miter-box



NrTEo STATES-f PATENT Fries.

CL'ARENGE ADELBERT WILLIAMS, OF WEBSTER CITY, IOWA.

MiTER-BOX.

EPECIPICATION forming part of Letters Patent No. 352,846, dated November16, 1886.

I Application filed May 10, 1886. Serial No. 201,729. (NomodeL) T aZZwhom it may concern.-

Be it known that I, CLARENCE ADELBER'I WILLIAMS, of Webster City, in thecounty of of one end of the apparatus, showing the movable side piecesset to out a compound bevel. Fig. 3 is a detail side view illustratingthe various positions to which the said side pieces may be adjusted andFig. 4 is a. crosssectional view drawn alongside of the rod for securingthe movable side pieces in their several adjustments.

The base Aandthe fixed side pieces, B, may

be made of metal; but, by preference, I form such parts of wood andlaminated, as shown, to prevent warping and give strength to theconstruction. In the fixed side pieces I form saw passages or openings1), having their walls formed with dovetail grooves G. The sawguides Dare provided with dovetail ribs d, adapted to fit the dovetail groovesO,sothe guides may be fitted thereinto and held, as will be obvious.Near theirup'per ends the guides are preferably formed with sockets oropenings 1, inwhich may be engaged the point of any suitable implementby which the guides may be elevated within thepassages b to guide thesaw for thicker work, or to enable the withdrawal of such guides whenworn and when it is desired to replace them by'new ones.

It will be noticed that the adjacent faces er the saw-guides arearranged at angles, right and otherwise, as desired, to the length ofthe box. This is preferably effected by forming the passages in whichthey fit atthe desired angles, as shown.

It will be noticed that by elevating the sawguides the box. may befitted for accurately cutting bevels in thick work as well as in thin.

The adjustable side pieces, E, are provided with saw-passages, which,instead of being preferably, in rotatable pieces or carrier's F, whichare journaled in theside pieces and have dovetail grooves O to receivethe guides, asshown. these guideswith-tenons or ribs and having thedovetails formed on said ribs, I form the bodies of the guides dovetail,as will be seen.

By preference, instead of forming formed directly in the bodies of theside I pieces, as in the'case of the pieces B, are formed,

such manner and by such means as to permit them to be adjusted,preferably,'so they can be adjusted .rotarily and longitudinally on thebase-piece. By means of the rotary adjustment of such pieces when theyare set opposite each other they may be employed to guide the saw incutting at right angles to both the length and thickness of a board, orat right angles to its length and at any desired angle with reference toits thickness.

To enable the side pieces to be set rotarily, in order to accurately cutat any given angle with reference to the thickness thereof, I bypreference provide one or both with graduations H, as shown, whichregister against a line or mark, as w, drawn radial to the pivot of thebolt.

By adjusting the pieces, one or'both, longitudinally on the base, I amable to out aboard at any desired angle to its length, and by both thelongitudinal and rotary adjustments I am able to cut a compound bevel,or one at angles to both the length and thickness of the board. It isusual to provide the box with a bottom, I, whichmay be removed whenworn.

Whilethe adjustment of the side pieces may be effected in various wayswithout departing from the broad principles of my invention, Ipreferably carry out this feature of the invention by the constructionshown. To this end the pieces E are formed with H-shaped slots J, havingmain or cross wings 3 and end wings, 4, as shown. Midway-their ends thewings 3 are provided with notches 5. A bolt, K, extends transverselythrough the base and ICO through the slots J and having a head and athreaded end, the latter being adapted to receive the clampingthumb-screw L. By the slots the pieces E, when the nut L is eased up,may be adjusted to any desired position and be secured thereat byclamping up the nut. The notches 5 serve to indicate, when opposite thebolt, that the two pieces E are opposite each other.

To avoid the driving of nails into the box to serve as stops for thelumber being sawed, I prefer to employ an adjustable stop, M,'consisting of a block, 6, arms 7, a spring, 8, supporting said arms,and a set-screw, by which the said arms may be adjusted to set theirouter ends against the sides of the box, and thus clamp the stop at thedesired poi'nt.

Having thus described myinvention, what I claim as new is- 1. Incombination with a miter-box, a stop consisting of a block or support,arms held thereby and having their ends movable outward against thesides of the box, and a setscrew for adjusting said arms, substantiallyas set forth.

2. The combination of the bottom, the side piece, E, having a slotformed with a crossside piece in any desired adjustment, substantiallyas set forth.

4. The combination, in a miter-box, of the base or bottom, the sidepiece lapped against the side of and movable longitudinally along orrotarily on the bottom, and the screw and nut, substantially as setforth. i

5. The combination of the bottom, a 'side piece adjustablelongitudinally along the same, and also rotarily in a plane in line withits direction of longitudinal movement, and a clamp for securing saidside piece in any desired adjustment, substantially as set forth.CLARENCE ADELBERI WILLIAMS. Witnesses:

WILL VINCENT, D. D. CHASE.

